JP2538564Y2 - Mirror body holding structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a rearview mirror for an automobile in which a mirror body is rotatably held by a spherical pivot provided at a tip of a stay.

[Related Art and Problems] A rearview mirror for an automobile, in which a mirror body is rotatably held by a spherical pivot provided at a tip of a stay, is widely used as an outside mirror mounted on a truck, a van, or the like. .

This type of rearview mirror adjusts the holding torque of the pivot by pressing the spherical pivot attached to the tip of the stay into the receiving part of the pivot provided on the back of the mirror body, and then tightening the torque adjustment screw. The mirror body was intended to be stably and firmly held by the elastic pressing effect of the pivot and its receiving part (see Japanese Utility Model Publication No. 58-51637).

However, this type of conventional device has a structure in which a relatively large mirror body is held by a small sphere, so there is regrettable lack of stability, and there is a disadvantage that the mirror is apt to chatter during running. And, since the holding portion of the pivot is tightened with a screw to apply a large holding torque to a small spherical surface, the mirror body is easily deformed. That is, since the body of the rearview mirror is usually made of a synthetic resin material, when the screws are tightened, a deformation force is applied to the entire body including the receiving portion into which the screws are inserted. Under the conditions or aging, the resin is aged and loses its elasticity, and permanent deformation easily occurs on the body side. As a result, it is difficult to maintain a constant holding torque between the pivot and the receiving portion of the pivot, and the mirror surface tends to be easily distorted by the body deformation. Furthermore, when the holding force between the pivot and the receiving portion of the pivot becomes loose and
There is also a problem that the set angle of the mirror body is lost and a normal rear view cannot be obtained.

An object of the present invention is to solve the above-described problems of the prior art. The present invention is configured so that a mirror body attached to a stay tip can be held as a center of rotation, and a mirror body is provided below the mirror body. It is an object of the present invention to provide a mirror body holding structure in which a pair of stay holding members are provided and the mirror body is positioned and fixed by the holding members.

[Means for Solving the Problems] In order to achieve the above object, the present invention attaches a sphere to the tip of a stay, and provides a spherical seat for receiving and holding the sphere on the back of the mirror body, and the seat has A tightening screw capable of adjusting the fitting torque between the sphere and the seat is mounted, and a pair of flat plate holding members which are located on both sides of the stay and hold the stay below the sphere are integrated with the back of the mirror body. The stay is slidably held in the front-rear direction by the holding member via a fastening screw mounted so as to straddle the opposing holding member.

[Action] In the present invention having the above-described structure, the entire mirror body is held by the holding torque between the ball at the tip of the stay and the seat and the holding torque of a pair of holding members located on both sides of the stay and holding the stay. Is fixedly held.

Embodiment Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows an example of an automobile bag mirror to which the present invention is applied. In the drawing, reference numeral 1 denotes a cylindrical stay fixed to a vehicle body, and 2 denotes a mirror body attached to a tip of the stay 1 to support a mirror body 3. And a sphere (spherical pivot) serving as the center of rotation. The mirror body 3 is formed of a synthetic resin material, and a mirror body (not shown) is fitted on the front side thereof. Reference numeral 4 denotes a spherical seat provided on the back surface of the mirror body 3 for housing and holding the spherical body 2. As shown in FIG. 3, for example, the spherical seat 4 includes a pair of receiving portions 4a, 4a having, at the center, a receiving space 4b into which the spherical body 2 can be pressed. And a hemispherical seating surface is provided on the opposing surface of the receiving portion. Numeral 5 is a torque adjusting screw which is inserted into the surface facing the receiving portion and adjusts a holding torque between the bearing surface and the spherical body. Numeral 6 is a nut, and numeral 7 is a screw insertion hole formed in the pair of receiving portions 4a, 4a.
Numerals 8 and 8 are below the spherical body 2 and the stay 1
And a pair of holding members that are located on both sides of the holding member and hold the stay. The pair of holding members 8, 8 are connected to the mirror body 3.
The body is formed integrally with the body so as to protrude from the back of the body with an interval enough to hold the stay 1 therebetween.

By the way, the illustrated holding member is formed in a flat plate shape at an interval slightly larger than the outer diameter of the shaft of the stay 1. A pair of fastening screws 9, 9 are inserted into both inner and outer ends of the flat holding member so as to straddle the opposing holding member. Incidentally, reference numeral 10 denotes a nut provided on one of the holding members so as to be screwed with each of the screws, and reference numeral 11 denotes a screw insertion hole formed through both the holding members. Reference numeral 12 denotes a retainer having a U-shaped cross section attached so as to straddle both end surfaces of the pair of holding members.

This member can be made of a member having higher strength than the holding member. By the way, in the present invention, it is sufficient that the stay side surface is elastically clamped by the clamping member via a fastening screw attached so as to straddle the clamping member,
This retainer fixed on the holding member is not essential. Also, the fastening screws 9 are not required at both the inner and outer ends of the holding member 8, but it is sufficient to provide them at the outer ends.

Reference numeral 14 denotes a position regulating ring fixed on the shaft of the stay 1 to protect it, and flanges are provided at both ends. 15 is a cover.

[Effects of the Invention] According to the configuration of the present invention described above, the mirror body can be held around a spherical body attached to the tip of the stay as the center of rotation, and a pair of stay holding members are provided below the mirror body to allow the mirror body to be held by the holding members. Since the mirror can be positioned and fixed, it is easy to adjust the angle of the mirror surface and can easily maintain a normal set angle even if the screws are not so strongly tightened. In addition, it is possible to reduce the chatter of the mirror, which was inevitable in the conventional type, and it is possible to stably and surely hold and fix a large mirror body. Further, according to the present invention, there is an advantage that the mirror body deformation due to the tightening of the screw can be prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of an automobile rearview mirror to which the present invention is applied, FIG. 2 is a cross-sectional view of a main part of the present invention, and FIG. 3 is an exploded perspective view of the same. 1: Stay, 2: Spherical, 3: Mirror body, 4: Spherical seat, 5: Torque adjustment screw, 8: Clamping member, 12: Retainer, 14: Ring

Claims (3)

(57) [Scope of request for utility model registration] 1. A sphere is attached to the tip of a stay, and a spherical seat for receiving and holding the sphere is provided on the back of the mirror body, and a tightening screw capable of adjusting a fitting torque between the sphere and the seat is provided on the seat. Further, a pair of flat plate-like holding members, which are located on both sides of the stay and sandwich the stay, are integrally provided on the back of the mirror body below the spherical body, and are attached so as to straddle the opposed holding members. A holding structure for a mirror body, wherein the stay is slidably held in the front-rear direction by the holding member via a tightened screw. 2. The mirror body holding structure according to claim 1, wherein an annular body is provided on the outer peripheral surface of the stay so as to be in contact with the holding member. 3. A first retainer having a U-shaped cross section attached to both end surfaces of a pair of clamping members so as to straddle said clamping members.
The mirror body holding structure according to the item.